I have just bought 2 computers; Acer with Centrino duo T2300 at 1,66Mgz
with 1G Ram and second Toshiba with Centrino T1300 at 1,86Mgz with 1G
Ram. Both are running Windows XP SP2 and Office 2003. I run two
differents speed test on Eccel and the Centrino duo T2300 was more then
twice slower than the Centrino T1300. The clock speed difference
doesn't explain big difference. Im not sure if Excel is optimize to
run on a Centrino duo